{
  "abstract": "A facile, one-step galvanic replacement route was used to grow hierarchical copper nanodendrites (Cu NDs) directly on aluminum (Al) foil, providing a dual-function plasmonic platform for surface-enhanced Raman scattering (SERS) and enzyme-free photoelectrochemical (PEC) detection of hydrogen peroxide (H2O2). The Cu NDs were formed by immersing Al foil in an acidified CuSO4 solution at room temperature, and their fern-leaf morphology, phase purity, and metallic Cu(0) oxidation state were confirmed by scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. Using 4-mercaptobenzoic acid (4-MBA) as a probe molecule, the Cu NDs/Al foil substrate achieved SERS detection down to 10−7 M with an approximate enhancement factor of ~106, consistent with strong localized surface plasmon resonance (LSPR)-driven electromagnetic enhancement. Under simulated solar illumination, LSPR-excited hot carriers additionally accelerated the electrocatalytic reduction of H2O2, raising the detection sensitivity from 110.6 to 145.3 μA cm−2 mM−1 relative to dark conditions. Wavelength- and intensity-dependent photocurrent measurements confirmed that this enhancement tracks the LSPR absorption band of the Cu NDs rather than photothermal heating. These results establish low-cost, earth-abundant Cu nanodendrites as an effective plasmonic platform for combined optical and electrochemical (bio)sensing.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Chemical Engineering and Biotechnology, , No. 1, Sec. 3, Zhongxiao E. Road, Taipei 10608, Taiwan",
    "Department of Opto-Electronic Engineering, , No. 1, Sec. 2, Da Hsueh Road, Shoufeng, Hualien 97401, Taiwan"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 3,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Ying-Chu Chen"
    },
    {
      "affs": [
        1
      ],
      "name": "Cing-Jhen Shih"
    },
    {
      "affs": [
        1
      ],
      "name": "Yu-Kuei Hsu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/54pwcm3qhzrd0.bib",
  "cited_by": 0,
  "doi": "10.3390/nano16191269",
  "fulltext_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13666979/?tool=EBI",
  "id": "54pwcm3qhzrd0",
  "issns": [
    "2079-4991"
  ],
  "landing_url": "https://europepmc.org/article/PMC/PMC13666979",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2504|Gold and Silver Nanoparticles Synthesis and Applications"
    ]
  ],
  "openalex": "W7220893972",
  "pdf_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13666979/pdf/?tool=EBI",
  "pmcid": "PMC13666979",
  "pmid": null,
  "published": "2026-10-01",
  "publisher": "MDPI AG",
  "ris": "https://research.draconitic.com/paper/54pwcm3qhzrd0.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:31Z",
      "native_id": "PMC:PMC13666979",
      "source": "europepmc",
      "url": "https://europepmc.org/article/PMC/PMC13666979"
    },
    {
      "first_seen": "2026-10-30T12:18:45Z",
      "native_id": "10.3390/nano16191269",
      "source": "crossref",
      "url": "https://www.mdpi.com/2079-4991/16/19/1269"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2504|Gold and Silver Nanoparticles Synthesis and Applications",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Plasmon-Enhanced Copper Nanodendrites as Dual-Function SERS Substrates and Photoelectrochemical H2O2 Sensors",
  "title_text": "Plasmon-Enhanced Copper Nanodendrites as Dual-Function SERS Substrates and Photoelectrochemical H2O2 Sensors",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:45Z",
  "url": "https://research.draconitic.com/paper/54pwcm3qhzrd0",
  "venue": "Nanomaterials (Basel, Switzerland)",
  "versions": []
}